v1

latestOpenAPI 3.0.42026-07-174835104.5 KB

me.message

Get attachment

Read the properties, relationships, or raw contents of an attachment attached to a user message. An attachment can be one of the following types: fileAttachment, itemAttachment, or referenceAttachment.

get/me/messages/{messageId}/attachments/{attachmentId}

Query parameters

$selectstring[]

Select properties to be returned

$expandstring[]

Expand related entities

Response

Retrieved attachment

@odata.typestring

idstring

The unique identifier for an entity. Read-only

lastModifiedDateTimestring date-time nullable

The Timestamp type represents date and time information using ISO 8601 format and is always in UTC time. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z

sizenumber

The length of the attachment in bytes

namestring nullable

The attachment's file name

isInlineboolean

true if the attachment is an inline attachment; otherwise, false

contentTypestring nullable

The MIME type

contentBytesstring base64url nullable

The base64-encoded contents of the file attachment. Required only for file attachments